M4.2 earthquake — 100 km S of False Pass, Alaska
An magnitude 4.2 earthquake occurred 100 km S of False Pass, Alaska on Aug 21, 2026 at 03:14 UTC. The epicenter was at a depth of 31 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M4.2 |
|---|---|
| Depth | 30.9 km |
| Coordinates | 53.950, -163.341 |
| Time | Aug 21, 03:14 UTC |
| Location | 100 km S of False Pass, Alaska |
| USGS event ID | us6000tmd6 |
What this magnitude typically means
Light earthquakes are felt by most people nearby but rarely cause damage. Distance, depth, and soil type determine whether a quake feels sharp or barely noticeable. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M2.8 | 9 km | Aug 21, 05:22 UTC | 108 km S of False Pass, Alaska |
| M2.7 | 9 km | Aug 22, 05:09 UTC | 104 km S of False Pass, Alaska |
| M2.8 | 17 km | Aug 20, 22:05 UTC | 94 km S of False Pass, Alaska |
| M2.6 | 24 km | Aug 23, 02:02 UTC | 112 km SSE of False Pass, Alaska |
| M2.6 | 37 km | Aug 20, 22:05 UTC | 87 km SSW of False Pass, Alaska |
| M2.6 | 55 km | Aug 26, 05:25 UTC | 116 km ESE of Akutan, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.